---
title: Expressions
description: >-
  Use inline expressions and dedicated function/expression actions for custom
  data transformations in workflows.
breadcrumbs: Docs > Actions > Workflow Automation > Expressions
---

# Expressions

{% callout %}
# Important note for users on the following Datadog sites: app.ddog-gov.com

{% alert level="danger" %}
This product is not supported for your selected [Datadog site](https://docs.datadoghq.com/getting_started/site.md). ().
{% /alert %}

{% /callout %}

To learn about language-specific expressions, choose one of the following:

- [JavaScript](https://docs.datadoghq.com/actions/workflows/expressions/javascript/)
- [Python](https://docs.datadoghq.com/actions/workflows/expressions/python/)

## Further reading{% #further-reading %}

- [Variables and parameters](https://docs.datadoghq.com/service_management/workflows/variables.md)

Do you have questions or feedback? Join the **#workflows** channel on the [Datadog Community Slack](https://chat.datadoghq.com/).